#!/bin/sh
#Version 0.16.4
#Info: Installs Chaincoind daemon, Masternode based on privkey, and a simple web monitor.
#Chaincoin Version 0.9.3 or above
#Tested OS: Ubuntu 17.04, 16.04, and 14.04
#TODO: make script less "ubuntu" or add other linux flavors
#TODO: remove dependency on sudo user account to run script (i.e. run as root and specifiy chaincoin user so chaincoin user does not require sudo privileges)
#TODO: add specific dependencies depending on build option (i.e. gui requires QT4)

noflags() {
	echo "┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄"
    echo "Usage: install-chc"
    echo "Example: install-chc"
    echo "┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄"
    exit 1
}

message() {
	echo "╒════════════════════════════════════════════════════════════════════════════════>>"
	echo "| $1"
	echo "╘════════════════════════════════════════════<<<"
}

error() {
	message "An error occured, you must fix it to continue!"
	exit 1
}


prepdependencies() { #TODO: add error detection
	message "Installing dependencies..."
	sudo apt-get update
	sudo DEBIAN_FRONTEND=noninteractive apt-get -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" dist-upgrade
	sudo apt-get install automake libdb++-dev build-essential libtool autotools-dev autoconf pkg-config libssl-dev libboost-all-dev libminiupnpc-dev git software-properties-common g++ bsdmainutils libevent-dev -y
	sudo add-apt-repository ppa:bitcoin/bitcoin -y
	sudo apt-get update
	sudo apt-get install libdb4.8-dev libdb4.8++-dev -y
}

createswap() { #TODO: add error detection
	message "Creating 2GB temporary swap file...this may take a few minutes..."
	sudo dd if=/dev/zero of=/swapfile bs=1M count=2000
	sudo mkswap /swapfile
	sudo chown root:root /swapfile
	sudo chmod 0600 /swapfile
	sudo swapon /swapfile

	#make swap permanent
	sudo echo "/swapfile none swap sw 0 0" >> /etc/fstab
}

clonerepo() { #TODO: add error detection
	message "Cloning from github repository..."
  	cd ~/
	git clone https://github.com/chaincoin/chaincoin
}

compile() {
	cd chaincoin #TODO: squash relative path
	message "Preparing to build..."
	./autogen.sh
	if [ $? -ne 0 ]; then error; fi
	message "Configuring build options..."
	./configure $1 --disable-tests
	if [ $? -ne 0 ]; then error; fi
	message "Building ChainCoin...this may take a few minutes..."
	make
	if [ $? -ne 0 ]; then error; fi
	message "Installing ChainCoin..."
	sudo make install
	if [ $? -ne 0 ]; then error; fi
}

createconf() {
	#TODO: Can check for flag and skip this
	#TODO: Random generate the user and password

	message "Creating chaincoin.conf..."
	MNPRIVKEY="6FBUPijSGWWDrhbVPDBEoRuJ67WjLDpTEiY1h4wAvexVZH3HnV6"
	CONFDIR=~/.chaincoincore
	CONFILE=$CONFDIR/chaincoin.conf
	if [ ! -d "$CONFDIR" ]; then mkdir $CONFDIR; fi
	if [ $? -ne 0 ]; then error; fi
	
	mnip=$(curl -s https://api.ipify.org)
	rpcuser=$(date +%s | sha256sum | base64 | head -c 10 ; echo)
	rpcpass=$(date +%s | sha256sum | base64 | head -c 32 ; echo)
	printf "%s\n" "rpcuser=$rpcuser" "rpcpassword=$rpcpass" "rpcallowip=127.0.0.1" "listen=1" "server=1" "daemon=1" "maxconnections=256" "masternode=1" "masternodeprivkey=$MNPRIVKEY" > $CONFILE

        chaincoind
        message "Wait 10 seconds for daemon to load..."
        sleep 20s
        MNPRIVKEY=$(chaincoin-cli masternode genkey)
	chaincoin-cli stop
	message "wait 10 seconds for deamon to stop..."
        sleep 10s
	sudo rm $CONFILE
	message "Updating chaincoin.conf..."
        printf "%s\n" "rpcuser=$rpcuser" "rpcpassword=$rpcpass" "rpcallowip=127.0.0.1" "listen=1" "server=1" "daemon=1" "maxconnections=256" "masternode=1" "masternodeprivkey=$MNPRIVKEY" > $CONFILE

}

createhttp() {
	cd ~/
	mkdir web
	cd web
	wget https://raw.githubusercontent.com/chaoabunga/chc-scripts/master/index.html
	wget https://raw.githubusercontent.com/chaoabunga/chc-scripts/master/stats.txt
	(crontab -l 2>/dev/null; echo "* * * * * echo MN Count:  > ~/web/stats.txt; /usr/local/bin/chaincoind masternode count >> ~/web/stats.txt; /usr/local/bin/chaincoind getinfo >> ~/web/stats.txt") | crontab -
	mnip=$(curl -s https://api.ipify.org)
	sudo python3 -m http.server 8000 --bind $mnip 2>/dev/null &
	echo "Web Server Started!  You can now access your stats page at http://$mnip:8000"
}

sentinel() {
	message "Installing Sentinel..."
	cd ~/
	sudo apt-get update
	sudo apt-get -y install python-virtualenv
	git clone https://github.com/chaincoin/sentinel.git && cd sentinel
	virtualenv ./venv && ./venv/bin/pip install -r requirements.txt
	git pull
	rm -rf venv && virtualenv ./venv && ./venv/bin/pip install -r requirements.txt
	message "Creating sentinel.conf..."
	printf "%s\n" "rpcuser=$rpcuser" "rpcpassword=$rpcpass" "rpcport=11995" "rpchost=127.0.0.1" "network=mainnet" "db_name=database/sentinel.db" "db_driver=sqlite" > sentinel.conf
	message "Updating Crontab..."
	(crontab -l 2>/dev/null; echo "* * * * * cd /root/sentinel && ./venv/bin/python bin/sentinel.py >/dev/null 2>&1") | crontab -
}

success() {
	chaincoind
	message "SUCCESS! Your chaincoind has started. Masternode.conf setting below..."
	message "MN $mnip:11994 $MNPRIVKEY TXHASH INDEX"
	exit 0
}

install() {
	prepdependencies
	createswap
	clonerepo
	compile $1
	createconf
	sentinel
	success
}

#main
#default to --without-gui
install --without-gui